16进制转换为二进制
/**
* 将16进制转换为二进制
*
* @param hexString
* @return
*/
public static String hexString2binaryString(String hexString) {
//16进制转10进制
BigInteger sint = new BigInteger(hexString, 16);
//10进制转2进制
String result = (2);
//字符串反转
return new StringBuilder(result).reverse().toString();
}